Machine for making lath-board.



s. M. FORD.

MACHINE FOR MAKING LATH BOARD.

APPLICATION FILED MAR. 9, 191a.

1,29'7 3% Patented Mar. 11,1919.

7? 2 SHEET.SSHEET I.

1 n v en for 5/6 MFG/"0,

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S. M, FORD.

MACHINE FOR MAKING LATH BOARD.

APPLlCATiON FILED MAR. 9. 191B.

1,297,3@% Patented Mar. 11,1919

2 SHEETS-SHEET 2.

SILAS M. roan, or sr. PAUL, MINNEsoTA.

MACHINE r03. MAKING LATE-BOARD.

Specification of Letters Patent.

Patented Mar. 1 1, 1919.

Application filed March 9, 1918. Serial No. 221,560.

7 '0 all whom it may concern:

Be it known that I, SILAs M. Foal), a citi-- zen of the United States,and a resident of St. Paul, in-the county of Ramsey and 'State ofMinnesota, have invented certain new and useful Im rovements in Machinesfor Making Lathoard, of which the following is a s ecification.

no object of my invention is to provide, in a machine for making lathboard, improved means for forming corrugations in a sheet of suitablematerial, the particular feature being that the folding or forming meansare rlgidly held in respect to the material as the material is passedtherethrough.

Another object of my invention is to form in a link belt forming cleatsformed of a portion of the links and adapted to form thereover a lathboard composed of alternate lath-like faces with intermediatedepressions.

Another object of my invention is to provide in a machine for makinglath board, in continuous operation, means for forming at statedintervals a lath-like face of an extra width.'

With these and incidental objects in view the invention consists ofcertain novel .features of construction and combination of parts, theessential elements of which are hereinafter described with reference tothe drawings which accompany and form a part of this specification.

' Inthe drawing Figure 1 is a side elevation of my improved machine withportions broken away. Fig. 2 is a perspective view of the forming meansshown in Fig. 1. Fig. 3 is a detail of one of the links of the link beltforming a part of my machine, carrying, as a part of itself, a formingcleat. Fig. 4 is an end view of a portion of the formed lath boardshowing the method of joining the formed sheets. Fig. 5 is a detail ofone of the links of the conveyer. Fig. 6 is a perspective view of thelink belt conveyer, and Fig. 7 is a plan view of the machine shown inFig. 1.

The essential part of my invention is a pair of link belts. the beltbeing formed of multiple links 1, Fig. 2. carried by hinge pins 2 andjoining multiple links 3 on thehinge pins 2, the nks 1 and links 3 beingalternately disposed along the pins 2.

The lower belt is similarly arranged, the links 4 and the links 5 beingjoined on pins 6.

The machine may be built up with the links alternately spaced on theplus 2, thereby leavin spaces between the forn'ling portions 7 o thelinks 3, but I prefer to fill these spaces with punchings 8 so eachtransverse row of the links 3 would present a fiat solid surface alongtheir v outer edges and along the angles 9.

The result of this construction is a link belt composed of multiplelinks of two different classes, one the ordinary link 1 and the otherthe forming link 3, which may or may not, as desired, have associatedtherewith space fillers 8.

A pair of rolls 10 and 11, carried by shafts 12 and 13 jouraled in theframe members 14 and 15, respectively. have formed in their facesgrooves 16 and 17, respectively, adapted to receive the ears of thelinks 1 and 3.

Looking at the transverse row of links 3 indicated by the numeral 18,Fig. 1, it will be seen that this row. which constitutes at thisparticular time a solid dovetailed shaped cleat, is forming the sheet ofpaper 19-as the cleat is moving in an anti-clockwise direction, and atthis moment of maximum strain on the cleat the ears of the cleat aresecurely locked in the grooves 16 of the roller 10 so there is nopossibility of the cleat 18 tipping or moving in any regard except inthe arc of a circle about the shaft 12.

Looking particularly at the row of cleats indicated by the numeral 20.which row is just past the center line of the shafts 12 and 13. it willbe seen that the member 21 has just left its cooperating groove of theroller 11 and that the cleat 20 is now moving in a horizontal directionto the right, having performed the forming operation on the paper andnow carrying the paper forwardly in the machine.

Looking particularly at the row of links marked 21 and 22. it will benoted that there are two rows of forming links 3, two rows of links 1having been omitted between the rows of links 21 and 22, and that theadjacent corners of these rows have been cut off as at 22 so that paperformed thereover will "have a lath-like face of substantially double thewidth of the faces formed by the other rows of links.

This particular formation is for the purpose of establishing a cuttingline in the completed lath board so the extra wide face may be outcentrally and form a free face of substantially the same width as theordinary lath-like faced formed, and when thisfree end is lapped withthe shorter end produced by cutting one of the ordinary lath-like facescentrally, a full lap joint may be produced in laying the lath board onthe wall, as plainly shown in Fig, 4. g

A knife 41, mounted in a slot carried by the row of links 42,'isprovided for cutting the paper on the Wide, lath-like face, and asimilar knife 43, co-acting with the'slot in the'row of links 44, isprovided for cutting the paper on a. lath-like face of ordinary width,so the complete operation of the machine will cut the paper fed thereininto lengths having a longer face on one end and a short face on theother end to establish the lap joint as shown in Fig. 4.

Inasmuch as the knives 41 and 43 ride over the series of links 42 and 44respectively, and the linksv are spaced apart the thickness of theadjacent links, the cutis not a complete severing of the sheet, but isin the nature of aseries of perforations across the sheet, leavinreadily severed a ong this line.

When the formed paper has reached the center line of the shafts 23 and24, the forming rows of the links are rolled out of the lath-likedepressions but the formed lath board is carried forwardly by theconveyer chains formed likewise of two link belts having links 1 andlinks 25 joined together on hinge pins 2, the links 25 being similar tothe links 3 except that their projections 26 are rectangular in shapeinstead of dovetailed.

These conveyer chains or belts are carried by the rollers 10 and 11passed over rollers 27 and 28 to rollers 29 and 30, which are of smallerdiameters than are rollers 27 and 28, so the extensions 26 are graduallywithdrawn from the formed lath-board as they reach the center line ofthe shafts 31 and 32.

The shafts 31 and 32 also carry forming rollers 33 and 34 which pressthe dove-tailed formations into more intimate relation with each other,as shown at 35.

Looking at Fig. 7, it will be seen that the forming link belts 36 and 37and 38 carry the rows of dove-tailed forming links 3, and intermediateof these forming belts are the conveyer belts 39 and 40, the relativewidth the paper so it may be the material will take the dove-tailedshaped fold a certain distance beyond theend of each of the rows of theforming links 20.

While I have described my invention and illustrated it in one particulardesign, I do not wish it understood that I limit myself to thisconstruction, as it is evident that the invention may be varied in manyways within the scope of the following claims.

Claims 1. In a machine for making'lath board the combination with otherforming means adapted to form material into lath board having a seriesof lath-like faces and intermediate depressions, of means adapted toform a lath-like face of a width substantially double that of the otherlath-like faces formed.

.2. In a machine for making lath board the combination of means forforming paper into lath board having a series of-lath-like faces andintermediatedepressions and having one of said lath-like faces ofgreater width than the remainder, and cutting means for cutting saidlath board across said wider lath-like face.

3. In a machine for making lath board the combination of means forforming material into lath board having a series of lath- I like facesand intermediate depressions, one of said lath-like faces being ofgreater width than the remainder, and means for cutting said lath boardinto even lengths, one out being across said wider lath-like face andanother cut .being across one of the ordinary lath-like faces.

4. In a machine for making lath board an endless belt comprised of aseries of transverse forming cleats each of said forming cleats beingcomposed of multiple punchings placed side by side and strung onto atransverse rod, multiple connecting links connecting said cleats inhinged relation thereby forming a substantially solid metal belt havingcleats extending transversely thereof.

SI-LAS M. FORD.

